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For the Inventor, By the Inventor

Utsunomiya, Japan

Nec Tokin Tochigi, Ltd.

Calculating rank
USPTO Granted Patents = 7



Forward Citations = 48

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11 inventors (with patents filed for the assignee):

goldMedal Hiroyuki Mizuno (2 out of 20 patents)

silverMedal Yuichi Maekawa (2 out of 9 patents)

bronzeMedal Kazuyuki Tukawaki (2 out of 2 patents)

4.  Kiyohide Takimoto (2 out of 3 patents)

5.  Tetsuhiro Oogaku (1 out of 1 patent)

6.  Eiji Hara (1 out of 1 patent)

7.  Shin Suzuki (1 out of 1 patent)

8.  Yoshiyuki Sasaki (1 out of 1 patent)

9.  Yasuyuki Suzuki (1 out of 1 patent)

10.  Tsutomu Ooshima (1 out of 1 patent)

11.  Kazumasa Ohya (1 out of 1 patent)

12.  Masaharu Satoh (21 patents)

13.  Yutaka Bannai (13 patents)

14.  Masato Shirakata (14 patents)

15.  Hiroshi Yageta (25 patents)


7 patents:

1. 7150936 - Sealed battery and method for manufacturing sealed battery (2006-12-19),
2. 6977125 - Closed type battery (2005-12-20),
3. 6930467 - Multi-series connection type battery cell pack for reducing self-consumption over a long period of time (2005-08-16),
4. 6864014 - Connecting structure of conductive connecting tab of battery (2005-03-08),
5. 6767667 - Sealed battery (2004-07-27),
6. 6593026 - Sealed battery and method for manufacturing sealed battery (2003-07-15),
7. 6400120 - Mutual connection judging circuit (2002-06-04),
Company Overview
Nec Tokin Tochigi, Ltd. is a leading manufacturer of electronic components and devices, particularly specializing in power supply solutions. With a strong focus on research and development, the company has a track record of delivering innovative and reliable products to meet the needs of a variety of industries. Their commitment to quality and customer satisfaction has made them a trusted partner for businesses worldwide.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

7 Patents

#3 in Utsunomiya

#5,462 in Japan

Utsunomiya, JP
Utsunomiya, Japan

Nec Tokin Tochigi, Ltd.

Forward Citations = 48

11 inventors:

goldMedal Hiroyuki Mizuno (2 out of 20 patents)

silverMedal Yuichi Maekawa (2 out of 9 patents)

bronzeMedal Kazuyuki Tukawaki (2 out of 2 patents)

4.  Kiyohide Takimoto (2 out of 3 patents)

5.  Tetsuhiro Oogaku (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nec Tokin Tochigi, Ltd.. Retrieved from https://idiyas.com/company/nec-tokin-tochigi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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